Don't have one, but growing up in the late 80's I went through so many copies of Bad on cassette. That album was sprinkled with pop magic! As of now though there all fantastic & uniquely MJ in their own way, & yes, uncluding Invincible. For the sake of the poll I'll vote Bad, but just know, they are all my children!
OTW: the 1st child that gets slightly overlooked & is jealous of the 2nd child getting all the attention.
Thriller: the one everyone loves & can do no wrong. The golden child of which the 1st is jealous.
Bad: the rebel, the one who surprises everyone with its different image & won't do what it's told.
Dangerous: the one that's in & out of relationships & won't settle down. Happy one minute, angry the next. Moody.
HIStory: the one that's been through the mill & had a bad rap, misunderstood but when you get to know him/her a wonderful person that you got all wrong until you took the time.
Invincible: the black sheep! Completely different, out of sync, unlike the others & rarely invited to the reunions. Confused, all over the place, too much going on, but hey, their still my kid no matter how much you try to disown him/her!